chore: release 2.0.0-alpha.20 (page ordering + sectioned space view)

CHANGELOG.md

@@ -3,6 +3,10 @@
 All notable changes to Void 2.0 are documented here.
 Format: [Keep a Changelog](https://keepachangelog.com).
 
+## 2.0.0-alpha.20 — Page ordering + sectioned space view
+- **Explicit page ordering** (`migration 020`, `lib/db/repos/pages.js`): pages gain a `position integer` column; `listBySpace` now orders `position, title` instead of alphabetical-only, with a covering index `(space_id, position, title)`. `position` is patchable via `PUT /api/pages/:id`. Backfills all rows to `0` (preserves prior title order until positions are set).
+- **Sectioned page tree** (`public/views/space.js`): the flat pages table is replaced by a `parent_id`-grouped tree — top-level pages render as section headers with their children/grandchildren nested. Backward-compatible with flat (un-nested) spaces. Enables the Wiki to read as ordered, sectioned documentation rather than an alphabetical dump.
+
 ## 2.0.0-alpha.19 — Whisper GPU sharing + mobile chat Send button + registry
 - **Whisper on GPU with graceful CPU fallback** (`workers/void_workers/model.py`): the STT worker uses the in-container NVIDIA driver on the GPU node, and **falls back to CPU on any load failure** (e.g. shared-card VRAM exhaustion) so a transcription never hard-fails. (Passthrough alone gave device nodes but no `libcuda` — the matching userspace driver was installed inside CT 311; see [[gpu-cpu-fallback-for-ha]].)
 - **Cooperative GPU sharing with Ollama** (`workers/void_workers/gpu.py`): before loading Whisper on CUDA, the worker asks the co-resident Ollama (CT 102, same A2000) to unload its models (`GET /api/ps` + `POST /api/generate keep_alive:0`) and waits for the card to clear; Ollama reloads on its next request. Best-effort, stdlib-only; toggle `OLLAMA_FREE_BEFORE_STT`, endpoint `OLLAMA_URL`.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "void-server",
-  "version": "2.0.0-alpha.19",
+  "version": "2.0.0-alpha.20",
   "type": "module",
   "private": true,
   "scripts": {

server.js

@@ -13,7 +13,7 @@ import { mcpAuth } from './lib/api/middleware/mcp_auth.js';
 import { handleMcp } from './lib/mcp/http.js';
 import httpProxy from 'http-proxy';
 
-const VERSION = '2.0.0-alpha.19';
+const VERSION = '2.0.0-alpha.20';
 
 // Proxy /terminal (+ its WebSocket) to ttyd on CT 300, so the embedded terminal
 // works whether the Void is reached via Traefik (void2-app.hynesy.com) OR the